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/* $OpenBSD: cn30xxasx.c,v 1.7 2017/11/05 04:57:28 visa Exp $ */
/*
* Copyright (c) 2007 Internet Initiative Japan, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <machine/octeonvar.h>
#include <octeon/dev/cn30xxasxreg.h>
#include <octeon/dev/cn30xxasxvar.h>
void
cn30xxasx_init(struct cn30xxasx_attach_args *aa,
struct cn30xxasx_softc **rsc)
{
struct cn30xxasx_softc *sc;
int status;
sc = malloc(sizeof(*sc), M_DEVBUF, M_WAITOK | M_ZERO);
if (sc == NULL)
panic("can't allocate memory: %s", __func__);
sc->sc_port = aa->aa_port;
sc->sc_regt = aa->aa_regt;
status = bus_space_map(sc->sc_regt, ASX0_BASE, ASX0_SIZE, 0,
&sc->sc_regh);
if (status != 0)
panic("can't map %s space", "asx register");
*rsc = sc;
}
#define _ASX_RD8(sc, off) \
bus_space_read_8((sc)->sc_regt, (sc)->sc_regh, (off))
#define _ASX_WR8(sc, off, v) \
bus_space_write_8((sc)->sc_regt, (sc)->sc_regh, (off), (v))
int cn30xxasx_enable_tx(struct cn30xxasx_softc *, int);
int cn30xxasx_enable_rx(struct cn30xxasx_softc *, int);
int
cn30xxasx_enable(struct cn30xxasx_softc *sc, int enable)
{
cn30xxasx_enable_tx(sc, enable);
cn30xxasx_enable_rx(sc, enable);
return 0;
}
int
cn30xxasx_enable_tx(struct cn30xxasx_softc *sc, int enable)
{
uint64_t asx_tx_port;
asx_tx_port = _ASX_RD8(sc, ASX0_TX_PRT_EN_OFFSET);
if (enable)
SET(asx_tx_port, 1 << sc->sc_port);
else
CLR(asx_tx_port, 1 << sc->sc_port);
_ASX_WR8(sc, ASX0_TX_PRT_EN_OFFSET, asx_tx_port);
return 0;
}
int
cn30xxasx_enable_rx(struct cn30xxasx_softc *sc, int enable)
{
uint64_t asx_rx_port;
asx_rx_port = _ASX_RD8(sc, ASX0_RX_PRT_EN_OFFSET);
if (enable)
SET(asx_rx_port, 1 << sc->sc_port);
else
CLR(asx_rx_port, 1 << sc->sc_port);
_ASX_WR8(sc, ASX0_RX_PRT_EN_OFFSET, asx_rx_port);
return 0;
}
int
cn30xxasx_clk_set(struct cn30xxasx_softc *sc, int tx_setting, int rx_setting)
{
_ASX_WR8(sc, ASX0_TX_CLK_SET0_OFFSET + 8 * sc->sc_port, tx_setting);
_ASX_WR8(sc, ASX0_RX_CLK_SET0_OFFSET + 8 * sc->sc_port, rx_setting);
return 0;
}
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